Since smoking-related illnesses are a serious health problem in Country X, and since addiction to nicotine prevents many people from quitting smoking, the government of Country X plans to reduce the maximum allowable quantity of nicotine per cigarette by half over the next five years. However, reducing the quantity of nicotine per cigarette will probably cause people addicted to nicotine to smoke more cigarettes. Therefore implementing this plan is unlikely to reduce the incidence of smoking related illnesses.

Which of the following, if true, most strongly supports the argument about the consequences of implementing the Country X government's plan.

(A) Over half of the nonsmoking adults in Country X have smoked cigarettes in the past.

(B) If the Country X government's plan is implemented, the brands of cigarettes sold in Country X will differ less from each other than they do now in terms of their nicotine content.

(C) Inexpensive, smoke-free sources of nicotine, such as nicotine gum and nicotine skin patches, have recently become available in Country X.

(D) Many smokers in Country X already spend a large proportion of their disposable income on cigarettes.

(E) The main cause of smoking-related illnesses is not nicotine but tar in cigarette smoke.